<?php

/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019/8/22
 * Time: 19:41
 */
class 比较字符串相似度
{

}

require('conn.php');
$sql="select title from content order by id desc limit 20"; //判断标题相似度
$result=mysql_query($sql,$conn);
$cf=0;
while($row=mysql_fetch_array($result)){
    similar_text($row['title'], $title, $percent); //比较相似度 存放于$percent
    if($percent>90){$cf=1;break;} //飘易注:相似度高于90% 则判断重复
}
if($cf==1){
    echo "<SCRIPT language=JavaScript>alert('抱歉！禁止发布重复信息！');";
    echo "this.location.href='vbscript:history.back()';</SCRIPT>";
    mysql_close();
    exit();
}